Curated Video
The Romans and Numerals
Though they were great engineers, the Romans were terrible mathematicians. They relied on the knowledge of their Greek slaves, and rather than developing maths, came up with one of the most awkward numerical notation systems known to...
Curated Video
History of the Hashtag
Everyday, millions of people around the world use hashtags to sift through the Internet’s endless content – but where did this ubiquitous symbol actually come from?
ProTeachersVideo
Painting With Numbers: Zero to Infinity
Marcus du Sautoy takes us on a tour of the mathematical universe - from zero to infinity - and shows us how weird and wonderful numbers can be. In this programme, Marcus explains how humans first started counting with the whole numbers,...
Why U
Pre-Algebra 02 - Roman Numerals, Sign-Value vs Positional Notation
Roman numerals are an ancient base-10 natural number system. Understanding Roman numerals (a sign-value notation) can shed light on our modern number system which uses positional notation.
Curated Video
Comparing the Value of Digits in Decimals Using Place Value and Models
In this video, students learn to compare the value of digits in a decimal by using models and understanding place value. They will explore how the value of a digit changes as it moves to the left or right on the place value chart....
Curated Video
Complete SAS Programming Guide - Learn SAS and Become a Data Ninja - Column Input
In this video, you will learn about column input, which has some advantages over list input. The author will cover what those advantages are! This clip is from the chapter "Input Types and Informats + User-Defined Formats" of the series...
Curated Video
Understanding Place Value
This video is an educational lesson that teaches about place value and how to understand the relationship between the different place values within a number. The lesson explains how to count the number of ones, tens, and hundreds that...